Development of Energy/link budget model for heterogeneous wireless sensor networks

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K04390
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21020:Communication and network engineering-related
• Research Institution: Niigata University
• Principal Investigator: Sasaki Shigenobu 新潟大学, 自然科学系, 教授 (20242399)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: センサネットワーク / エネルギーハーベスティング / リレー伝送 / エネルギー収支 / プロトコル / MIMO

Outline of Final Research Achievements

In this project, we attempted to develop a theoretical basis for energy budget and link budget analysis model to enable both reliable information transmission and operational lifetime by acquiring energy from the radio waves of surrounding wireless terminals through RF energy harvesting (RF-EH) functionality in heterogeneous wireless sensor networks (WSN) scenario.
An information transmission/energy budget model has been developed for MIMO relay transmission consisting of a sensor terminal (ST), relay terminal (RT), and base station (receiving terminal: BS). Effective range of RF-EH from surrounding wireless terminals (ES) regarding operational duration was clarified. We also evaluated the operational lifetime of various transmission protocols such as CSMA/CA, etc.

Free Research Field

情報通信工学

Academic Significance and Societal Importance of the Research Achievements

本研究を通して、無線センサネットワーク(WSN)において、RFエネルギーハーベスティング (RF-EH)機能により周辺の無線端末の電波からエネルギーの獲得し、情報伝送の信頼性と動作寿命の長期化を両立させるための理論的基盤が構築できた。今後、IoT（モノのインターネット）の拡大により社会の至る場面でデータ収集を行うWSNの展開が想定され、本研究の成果はその普及促進の一助となることが期待できる。